Technogym BIOSTRENGTH LINE, Service Maintenance Manual

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BIOSTRENGTH LINE: Service & Maintenance manual - rev. 2.1
Page 3.23
Figure 3.4.6
CAUTION: the encoder signal output from the motor is dirtier and varies between
approximately 8.7 – 11 V, while the signal output from the board is cleaner and
varies between 0 – 5 V.
•
Motor voltage
This is the power supply signal for the seat motor produced by the Bio servo board (pins 1-2 on
connector CN2): when it is:
→
0 Vdc the motor is stopped;
→
+24 Vdc the motor turns to move the stem outward;
→
–24 Vdc the motor turns to move the stem inward.
The figure below shows the switching of the power supply signal upon receiving a motor up
command, followed after a brief interval by a motor down command:
Figure 3.4.7